camisp-201
FSC
LSC
LSC
LSC
LSC
LSC
[...]
LSC
LSC
LSC
LSC
LSC
Pixels
LEC
LEC
LEC
LEC
LEC
LEC
LEC
[...]
LEC
LEC
LEC
LEC
LEC
LEC
LEC
LEC
FEC
LSC
LSC
LSC
LSC
LSC
Embedded data - SOF line(s)
Embedded data EOF line(s)
Full lines are always output
CCP2_LCx_STAT_START[11:0] SOF
CCP2_LCx_STAT_START[27:16] EOF
CCP2_LCx_STAT_SIZE[27:16] EOF
CCP2_LCx_STAT_SIZE[11:0] SOF
Line
blanking
Frame
blanking
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Camera ISP Basic Programming Model
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the pixel data of the last frame. After reset or after a 0-to-1 edge transition in
[0] IF_EN, the
pixel data are written in the PING buffer and
[17] PING_PONG = 0x1 (PONG). After the
first FEC synchronization code is received, the pixel data are written in the PONG buffer and
[17] PING_PONG = 0x0 (PING).
[17] PING_PONG toggles after
every FEC synchronization code.
6.5.3.17 Camera ISP CSI1/CCP2B Synchronization Codes
The FSC, FEC, LSC, and LEC synchronization codes have default values given by the CCP2B
specification. Also, each logical channel is identified by a default identifier.
The
register enables overwriting of the default values:
[11:8] FSC,
[15:12] FEC,
[3:0] LSC, and
[7:4] LEC
overwrite the 4 LSBs of the 32-bit synchronization codes. The default values should not be modified.
6.5.3.18 Camera ISP CSI1/CCP2B Status Data
The SOF and EOF status lines can be output to memory.
The SOF and EOF status lines always cover full lines. No register settings enable the setting of width.
The
register enables the setting of the vertical start position of the SOF and
EOF status lines. Because the SOF status line comes first in the CSI1/CCP2B frame,
[11:0] SOF = 0x0.
The
register enables the setting of the numbers of SOF and EOF status lines. If
[11:0] SOF = 0x0 and
[27:16] EOF = 0x0, no status
data are output.
shows the SOF and EOF region settings. The SOF and EOF status lines and the pixel data
must not overlap, but can be consecutive.
shows the SOF and EOF region settings.
Figure 6-106. Camera ISP CSI1/CCP2B SOF and EOF Region Settings
The 32-bit destination address of the SOF status lines is set by the
register.
1252
Camera Image Signal Processor
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated